Like any country, the people that live in Ireland have come from many places over many centuries. Some of the first people are believed to have come from northern Spain. There is also a large Celtic influence. There is a Viking connection which would connect people with Scandanavia. Many would have come from Britain. So the modern Irish people are a mix of many races and nationalities throughout its history.
People in Ireland are descended from a whole range of peoples, not one single group. People talk about all Irish people being descended from the Celts. The Celts are but one of many origins that Irish people have. The Celts were not the first people to come to Ireland, as many people believe. It is believed some people from Spain arrived first. Ireland has had people come from many other places too, like the Vikings. There are people living in Ireland now from countries from all over the world. So there is no single answer to your question.
You are descended from ancestors.
dunedun
No. The first people that came to Ireland were not Celts. They came from the north of Spain. Other peoples came to Ireland too, that make what is now the Irish people, including Vikings and Normans. So, like any country in the world, the people in Ireland have various origins.
An ancestor is a person from whom one's father or mother is descended. There are many ways to trace your heritage through your ancestry and the Internet has made that easier.
Abraham's grandson, Jacob, had 12 sons from whom are descended the 12 tribes of Israel.
You would call people cousins who are descended from the siblings of your parents, grand parent, great grandparents, etc.
The correct spelling is "ancestor" - a family member from whom you are descended.
The unionist or loyalist people, the majority of whom are protestants.
They believe that they were descended from the three Patriarchs: Abraham, Isaac, and Jacob as described at length in the Book of Genesis (ch.11 onwards).
An ascender is a portion of a lower-case letter which extends above the midline of a typeface.
Romania's people descended from Thracian tribes of Dacians and Getaes.